CVE-2021-23427
Arbitrary File Write via Archive Extraction (Zip Slip)
CRITICAL
9.8
CVSS Score
Published: September 1, 2021 at 02:30 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
1 product affected across 1 vendorElfinder.netcore
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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%
Description
This affects all versions of package elFinder.NetCore. The ExtractAsync function within the FileSystem is vulnerable to arbitrary extraction due to insufficient validation.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-DOTNET-ELFINDERNETCORE-1567778CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-22
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